aFe Pro Series Rear Differential Cover Kit: Dodge Ram 2500 / Ram 3500 2003 - 2005 w/ Machined Fins and Gear Oil

aFe Pro Series Rear Differential Cover Kit

2003–2005 Dodge Ram 2500 / Ram 3500

46-70092-WL

Overview:

The aFe Pro Series Rear Differential Cover Kit is a premium upgrade designed specifically for 2003 to 2005 Dodge Ram 2500 and Ram 3500 trucks. Engineered to enhance the durability and performance of your vehicle’s rear differential, this kit features a finned aluminum cover that increases fluid capacity and improves heat dissipation. Ideal for truck owners who demand reliability and extended service intervals, this differential cover helps maintain optimal operating temperatures, reducing wear and prolonging the life of your drivetrain components.

With its rugged construction and thoughtful design, the aFe Pro Series Rear Differential Cover Kit is perfect for those who tow, haul, or drive in demanding conditions where extra cooling and protection are essential.

Key Features:

This rear differential cover kit incorporates advanced features to maximize performance and ease of maintenance:

• Machined cooling fins cast into the aluminum cover to efficiently transfer heat away from the differential fluid
• Increased fluid capacity to improve lubrication and cooling without the need for dipstick modifications
• Magnetic drain plug to capture metal particles and simplify fluid changes
• Temperature sensor port (1/8" NPT) for easy monitoring of differential fluid temperature
• Reinforced ribs integrated into the design for enhanced structural strength and durability
• Wrinkle black powder coated finish for corrosion resistance and a sleek, durable appearance
• Includes gear oil to ensure proper lubrication upon installation
• Designed to replace the stock stamped steel cover with a high-quality die-cast aluminum alternative
• 50-state legal and backed by a 2-year limited warranty

Construction & Design:

The aFe Pro Series Rear Differential Cover is crafted from rugged die-cast A380 aluminum, known for its excellent strength-to-weight ratio and thermal conductivity. The cooling fins are precision-machined and integrated directly into the cover, providing superior heat dissipation compared to standard stamped steel covers. Reinforced ribs add rigidity to withstand harsh driving conditions and protect the internal components of the differential.

The cover’s wrinkle black powder coated finish not only enhances corrosion resistance but also maintains a clean, professional look that complements the rugged style of Dodge Ram trucks. The magnetic drain plug and temperature sensor port are thoughtfully incorporated to facilitate maintenance and monitoring without compromising the cover’s integrity.

Installation & Fitment:

Designed as a direct replacement for the factory rear differential cover on 2003–2005 Dodge Ram 2500 and Ram 3500 models, this kit installs easily with common hand tools. No modifications to the vehicle’s differential housing or dipstick are required, making installation straightforward for professional mechanics and experienced DIY enthusiasts alike. The included gear oil ensures your differential is properly lubricated right out of the box.

What's Included:

• Pro Series finned aluminum rear differential cover
• Magnetic drain plug
• Temperature sensor port plug (1/8" NPT)
• Gear oil
• Installation hardware

Ideal For:

This rear differential cover kit is ideal for Dodge Ram 2500 and 3500 owners who frequently tow heavy loads, drive off-road, or operate their trucks in high-temperature environments. It is also well-suited for enthusiasts seeking to upgrade their vehicle’s drivetrain protection and cooling capabilities to extend the life of their differential and improve overall reliability.